#VU5042 Denial of service in Microsoft .NET Framework - CVE-2014-0253

Vulnerability identifier: #VU5042

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-0253

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft .NET Framework
Server applications / Frameworks for developing and running applications

Vendor: Microsoft

Description
The vulnerability allows a remote attacker to cause DoS conditions on the target system.

The weakness exists due to the failure to properly identify stale or closed HTTP client connections within Microsoft ASP.NET. By sending a specially crafted HTTP POST request, a remote attacker can cause the server to stop responding.

Successful exploitation of the vulnerability may allow an attacker to perform denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 1.1, 2.0, 3.5 - 3.5.1, 4.0, 4.5.1

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External links
https://technet.microsoft.com/en-us/library/security/ms14-009

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.